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Hydrogen Back Pressure Regulators

Hydrogen Back Pressure Regulators - SA5

Cashco Inc

  • Operating design pressure: up to 300 psig (20.7 Barg)
  • Controlled pressure range: 5-300 psig (0.34-20.7 Barg)
  • Temperature range: -20 to +400°F (-29 to +205°C)
  • Spring-operated, flow-to-open back-pressure design
  • Internal pressure-balancing piston-cylinder

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Description Vendor

The SA5 operates as a spring-operated, flow-to-open back-pressure regulator explicitly catalogued for hydrogen service within its specified operating envelope. Constructed with an ASTM A479 316L body, this unit features an internal pressure-balancing piston-cylinder and is suitable for both gaseous and liquid service applications. The regulator handles an operating design pressure up to 300 psig (20.7 Barg) and maintains a controlled pressure range of 5–300 psig (0.34–20.7 Barg) across a temperature range of -20 to +400°F (-29 to +205°C). Engineered for precise hydrogen back-pressure control, it interfaces via tube-end connections and is available in line sizes of 3/4 in (DN20) and 1 in (DN25).

Use Cases

  • Hydrogen back-pressure control
  • Gaseous service
  • Liquid service

Capabilities

  • Controls back pressure in hydrogen service
  • Operates up to 300 psig (20.7 Barg)
  • Controls pressure from 5 to 300 psig (0.34 to 20.7 Barg)
  • Operates from -20 to +400°F (-29 to +205°C)
Cashco Inc

Cashco, Inc. manufactures pressure regulators and control valves rated for hydrogen service, with its Model P1 self-contained regulator explicitly designed for gaseous or liquid high-purity oxygen, nitrogen, hydrogen, and argon applications, handling design pressures up to 3,000 psig inlet and constructed from ASTM A479 Type 316L stainless steel for hydrogen compatibility. The company's SLR-1 and SLR-2 Self-Loading Regulator valves, combining a DA4 pressure-reducing regulator with a Cashco P1 or Fairchild Model 10 pilot regulator, are specifically marketed for hydrogen gas, natural gas, and sour gas (NACE) applications, with the SLR-2 variant designed so cover dome pressure bleeds back into the main valve outlet rather than to atmosphere -- a key safety feature for hydrogen containment. Cashco's broader tank blanketing valves, back pressure regulators, and pressure vacuum relief products (expanded through its acquisition of 3B Controls) are applicable to hydrogen storage tank protection and vapor control needs.

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